[landave]

So I just tried to compile 7-Zip with VS2017 and /DYNAMICBASE. The main binary 7z.dll is 1,569,792 bytes in total, 9344 bytes (0.595%) of which are used by the relocation table. Enabling stack canaries (/GS) gives me a 1,578,496 byte binary (including the relocation table), so another 8704 bytes more.

[mjevans]

It would be interesting to have a comparison based on locally built binaries both with and without these features enabled.

Performing the tests on packing the actual 7-Zip source code (as shipped without extras) would be a valid reference suite.

[landave]

I assume you mean a performance comparison? The runtime performance cost of ASLR on Windows is zero once a binary has been loaded, since the code is relocated at load time.

Stack canaries might cause a slight performance hit, but it is usually below one percent, since it creates only a small cost per function call for a fraction of all functions.

[AnIdiotOnTheNet]

People not caring about load time costs are probably one of the reasons the guy still uses VC6, which starts up practically instantly.

[quotheth]

It isn't even per function call in all implementations.